Tag diff

[jjmachan]

Adding TagDiff

Why is this change required? What problem does it solve? Describe your changes in detail:

This is used to perform a diff of the tags in Stockroom and create a neat representation of the same.

If it fixes an open issue, please link to the issue here:

9

Screenshots (if appropriate):

Types of changes

What types of changes does your code introduce? Put an x in all the boxes that apply:

• [ ] Documentation update
• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

[CLAassistant]

All committers have signed the CLA.

[lgtm-com[bot]]

This pull request introduces 2 alerts when merging 3e0bc23e30fc014f94f2c78e3f49d205542262db into d1335773e33493df07cc95f9bb48fbc351313dd6 - view on LGTM.com

new alerts:

• 1 for Unused import
• 1 for Non-standard exception raised in special method

[hhsecond]

Closing since inactive and since it has been stalled